package com.miracle.core.security.filter;

import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;
import com.miracle.common.utils.SecurityUtils;
import com.miracle.common.utils.StringUtils;
import com.miracle.core.security.domain.SecurityUserDetails;
import com.miracle.core.security.service.TokenService;

/**
 * token过滤器 验证token有效性
 *
 * @author miracle
 */
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter
{
    @Autowired
    private TokenService tokenService;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
            throws ServletException, IOException
    {
        SecurityUserDetails securityUserDetails = tokenService.getUserDetails(request);
        if (StringUtils.isNotNull(securityUserDetails) && StringUtils.isNull(SecurityUtils.getAuthentication()))
        {
            tokenService.verifyToken(securityUserDetails);
            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(securityUserDetails, null, securityUserDetails.getAuthorities());
            authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
            SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        }
        chain.doFilter(request, response);
    }
}
